1130 search results for "parallel"

Using Julia As A ‘Glue’ Language

June 24, 2014
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While much of the focus in the Julia community has been on the performance aspects of Julia relative to other scientific computing languages, Julia is also perfectly suited to ‘glue’ together multiple data sources/languages. In this blog post, I will cover how to create an interactive plot using Gadfly.jl, by first preparing the data using Related posts:

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Deploying a scoring engine for predictive analytics with OpenCPU

June 23, 2014
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Deploying a scoring engine for predictive analytics with OpenCPU

TLDR/abstract: See the tvscore demo app or this jsfiddle for all of this in action. This post explains how to use the OpenCPU system to setup a scoring engine for calculating real time predictions. In our example we use the predict.gam function from the mgcv package to make predictions based...

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PITFALL: Did you really mean to use matrix(nrow, ncol)?

June 17, 2014
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PITFALL: Did you really mean to use matrix(nrow, ncol)?

Are you a good R citizen and preallocates your matrices? If you are allocating a numeric matrix in one of the following two ways, then you are doing it the wrong way!x <- matrix(nrow=500, ncol=100)orx <- matrix(NA, nrow=500, ncol=100)Why? Becau...

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useR!2014 Rcpp11 tutorial

June 17, 2014
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We are getting close to useR!2014. I hope I'll see some of you at my tutorial about Rcpp11 in the morning. There are some other pretty useful tutorials as well, so no hard feeling if you don't come, but if you do want to know about modern R and C++, pl...

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R and Vertica

June 14, 2014
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R and Vertica

I’ve been spending the last few months working my way through the integration of R and Vertica, and will try to keep here things that I find handy. I’m quite sad to see there is not much about this Vertica feature on the web, that’s a little disappointing. But, it didn’t stop us from creating a

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rCharts Parcoords x Simpsons x Blocks

June 6, 2014
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rCharts Parcoords x Simpsons x Blocks

Interactive Parallel Coordinates with Multiple ColoursFor my research project, I need a tool to visualise results from multi-objective optimisations. Below is one of my early attempts using base R and parcoord in the MASS package, I have no problem using them for publication. However, these charts are all static. For...

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The 7th China R Conference in Beijing

June 4, 2014
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The 7th China R Conference in Beijing

The 7th China R Conference in Beijing was held on May 24th ~May 25th in Renmin University of China. SupStat is really happy and honored to sponsor and attend this meeting. This is the largest ever R conference in China with 1814 registrations online and even 50 more requests of attendance with the help of special... Read more »

Introducing R for Big Data with PivotalR

June 4, 2014
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Introducing R for Big Data with PivotalR

Wouldn't it be great if there was a way to harness the familiarity and usability of a tool like R, and at the same time take advantage of the performance and scalability benefits of in-database/in-Hadoop computation? We're happy to announce PivotalR, a package that translates R code into SQL for processing, is available to download from GitHub today.

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Explaining the ABC-Rejection Algorithm in R

June 2, 2014
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Explaining the ABC-Rejection Algorithm in R

Approximate Bayesian Computation (ABC) is an umbrella term for a class of algorithms and ideas that allow performing an approximate estimation of the likelihood / posterior for stochastic simulation models when the likelihood cannot be explicitly calculated (intractable likelihood). To give you the idea in a nutshell: to approximate the likelihood, consider that for a…

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How does Practical Data Science with R stand out?

June 2, 2014
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How does Practical Data Science with R stand out?

There are a lot of good books on statistics, machine learning, analytics, and R. So it is valid to ask: how does Practical Data Science with R stand out? Why should a data scientist or an aspiring data scientist buy it? We admit, it isn’t the only book we own. Some relevant books from the Related posts:

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